Front wheel drive engagement control system for agricultural veh

Details Front wheel drive engagement control system for agricultural veh Front wheel drive engagement control system for agricultural veh

1994-11-14

1998-09-01

Louis-Jacques, Jacques H.

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Construction or agricultural-type vehicle

701 69, 701 81, 701 88, 701 89, 172 3, 172 4, 172 45, 172 7, 180233, 180247, 180197, 477176, 477 35, G06F 770, A01B 6700, B60K 1734

Patent

active

058024891

ABSTRACT:
A control system for engaging, disengaging and re-engaging a front wheel drive in an agricultural vehicle includes a control circuit configured to receive signals representative of vehicle operating parameters and to generate control signals corresponding to the desired state (i.e. engaged or disengaged) of a front wheel drive engagement circuit. Sensors are associated with the rear wheels, rear service brakes, implement positioning circuit, the vehicle body and the front axle to provide parameter signals related to wheel speed, braking, implement position and vehicle speed. Control logic executed by the control circuit in a continuously cycled routine determines the desired state of the engagement circuit based upon all operating parameters. The control circuit applies an appropriate control signal to the engagement circuit causing engagement or disengagement in accordance with the desired state.

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Abstract for 51-112031 and Abstract 53-111938 Massey-Ferguson 3600 no date.
MF 3000 Series Advertising Literature No date.

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